Quantcast

Latest Terahertz radiation Stories

2014-01-20 10:28:56

Scientists at the U.S. Department of Energy's Ames Laboratory have demonstrated broadband terahertz (THz) wave generation using metamaterials. The discovery may help develop noninvasive imaging and sensing, and make possible THz-speed information communication, processing and storage. The results appeared in the Jan. 8 issue of Nature Communications. Terahertz electromagnetic waves occupy a middle ground between electronics waves, like microwave and radio waves, and photonics waves, such...

Heating Water Ultrafast
2013-12-16 12:25:16

DESY Novel method opens new paths for experiments with heated samples of biological relevance Scientists from the Hamburg Center for Free-Electron Laser Science have devised a novel way to boil water in less than a trillionth of a second. The theoretical concept, which has not yet been demonstrated in practice, could heat a small amount of water by as much as 600 degrees Celsius in just half a picosecond (a trillionth of a second). That is much less than the proverbial blink of an eye:...

Graphene-based Nano-antennas Could Enable Networks Of Tiny Machines
2013-12-12 18:00:25

Georgia Institute of Technology Networks of nanometer-scale machines offer exciting potential applications in medicine, industry, environmental protection and defense, but until now there's been one very small problem: the limited capability of nanoscale antennas fabricated from traditional metallic components. With antennas made from conventional materials like copper, communication between low-power nanomachines would be virtually impossible. But by taking advantage of the unique...

2013-11-26 23:00:16

MRS Fall Meeting attendees can visit Booth 800 to learn about Lake Shore's newest Hall measurement system and other materials characterization systems. Columbus, OH (PRWEB) November 27, 2013 Lake Shore Cryotronics will discuss its soon-to-be-released Model 8407 DC Hall effect measurement system (HMS), as well as its other industry-leading materials characterization systems, at the Materials Research Society (MRS) Fall Meeting, Dec. 1-6 in Boston, Mass. The new system uses a 7-inch...

World’s Most Powerful Terahertz Quantum Cascade Laser Developed
2013-10-30 10:39:08

Vienna University of Technology Whether it is diagnostic imaging, analysis of unknown substances or ultrafast communication – terahertz radiation sources are becoming more and more important. At the Vienna University of Technology, an important breakthrough has been achieved. Terahertz waves are invisible, but incredibly useful; they can penetrate many materials which are opaque to visible light and they are perfect for detecting a variety of molecules. Terahertz radiation can be...

Tunable Plasmonic Crystal
2013-10-29 13:04:40

DOE/Sandia National Laboratories A device like a photonic crystal, but smaller and tunable Gems are known for the beauty of the light that passes through them. But it is the fixed atomic arrangements of these crystals that determine the light frequencies permitted passage. Now a Sandia-led team has created a plasmonic, or plasma-containing, crystal that is tunable. The effect is achieved by adjusting a voltage applied to the plasma. Because the crystal then is agile in transmitting...


Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
Related